Printing-press unit



Aug, 7, 1928,, I fifififlfim W. H. eRAmmEm PRINTING PRESS UNIT Filed April 10, 1926 33 7 5 301: M44; 45.5 /7. ma/van? MID Patented Aug. 7 UNITED STATES I I 1,680,018 PATENT orr ce.

WALLACE H. GRANGER, SAN FRANCISCO, CALIFORNIA.

PRINTING-PRESS. Um'r.

Application filed April 10,

vision in a unit printing press comprising two 'half-units, each having cylinders thereon; and means for driving the cylinders of each half-unit independently and in either the same direction or in opposed directions.-

With the foregoing objects in view, together with such other objects and advantages as may subsequently appear, this invention resides in the construction and ar: rangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, in which is shown a printing press unit in side elevation.

Referring to the drawing for more detailed description thereof, the printing press 7 the space 9.

unit comprises two half-units 3 and 4 respectively. These units are alike and comprise frames 6 which are separate but which abut each other at the vertical lines 7 and 8. The space 9 between the vertical members of the frames 6 is wide enough to allow a pressman to work freely therein. A floor may be provided on the bottom horizontal members of the frame 6 for the pressman working 1n On the outer sides of the frames 6 ink fountains 10' may be disposed. These ink fountains are described and claimed in my co-pending application, Serial No. 92,932 filed March 6, 1926.

An ink fountain 12, as shown in dotted lines, may be disposed on the inner/side of either'or both frames 6 if desired. The extra ink fountain 12 may be provided for use when the half-unit is being changed from an ink of one color to an ink of another color. For example, if black ink has been used for printing and has been dispensed from the ink fountain 10 from the half-unit 3, the fountain 12 may be put into operation when it is desired to use an ink of a color other than black.

The ink fountains, according to my present invention, instead of being placed below HEISSUED the impression cylinders as in previous presses, are placed substantially at the normal level of the pressman so that he may the more qu ckly observe or work on the same. By placing the ink fountains above the impltesslon cylinders the web lead is shortened and paper lint, which formerly fell from the paper into the ink fountains, may not foul 1926. Serial No. 101,192.

the ink in the fountains.

The ink fountains are adapted to be actuated by belts 14 mounted on wheels 15 at their upper ends,- and on wheels 16 at their lower ends. Ink drums or cylinders 17, which are'fed by the ink fountains 10, are mounted on the frame 6 of the ,units 3 and 4, and are provided with ink distributing rollers or drums 18. Plate cylinders 19 are disposed. opposite each other in the half units 3 and 4 and are disposed below the ink drums 17. I Below the plate cylinders 19 and disposed impression cylinders 21, disposed opposite each'other in the half units 3 and 4. Although the plate cylinders 19 are shown in the drawing as being the same diameter as the impression cylinders 21, they may be made smaller if desired. It will be noted that the plate 'cylinders 19 are above the impression cylinders 21.

It will be noted that the impression cylinders and plate cylinders are atthe outer sides of the unit and are readily accessible to the pressman. The position of these .cylinders is such that the pressman may lead paper there between without being in danger of having his hands caught between the cyl- "inders, as in machines of previous construc- Rotatably mounted wheels 28 are provided 100 for each half-unit 3 and 4, these wheels being a combination of beveled gears and sprocket wheels. A chain 30 is provided for each half-unit 3 and 4 to drive the inking cylinders, plate cylinders and impression 105 cylinders, the chain engaging the sprocket wheels 26 for this purpose, and being arranged in a serpentine path to give the cylindersor drums the desired rotation.

It is sometimes necessary to rotate the 110 cylinders or drums of both half-units in the same direction, while in other cases the cylinders or drums of one unit should be run in a direction opposite to the .corresponding cylinders or drums of the other unit.

It is also sometimes desirable to shut down one half-unit while running the other halfunit. To these ends I provide means whereby the cylinders and drums of one half-unit may be rotated independently of the drums and cylinders of the other half-unit and whereby the drums and cylinders of both half-units may be rotated in either direction.

The mentioned means comprises a drive shaft 32 rotatable in brackets 33 on which are mounted bevel gears and 36 for the half-unit 3 and beveled gears 37 and 38 for the half-unit 4. The beveled gears to 38 inclusive have splined connections with the shaft 32 so that they may be moved back andforth on the shaft into and out of engagement with the beveled gears 28. Set screws 40 are provided for securing the beveled gears 35 to 38 inclusive at desired po sitions on the shaft.

In the drawings the removable collar 42 is positioned between the beveled gear 36 and a bracket 33 and is disposed around the shaft 32. With the collar 42 in the position shown the beveled gear 36 is in engagement with the beveled gear 28 so that the beveled gears and drums of the half-unit 3 are rotated in the direction shown by the arrows 0n the drums and cylinders. When it is desired to reverse the direction of rotation of the drums and cylinders of the half-unit 3, the collar 42'may be removed and the beveled gear 36 moved on the shaft towards the right, out of engagement with the beveled gear 28. The beveled gear 35 may be then moved towards the rightinto engagement with the beveled gear 28 and the collar 42, placed between the left end of the beveled gear 35 and the adjacent bracket 33.

A removable collar 43 is positioned between the left end of the beveled gear 37 andthe adjacent bracket 33. \Vith the collar 43 in such position the beveled gear 37 engages the gear 28 so that the cylinders and 1 drums in the half-unit 4 are rotated in the direction shown by the arrows on the drums and cylinders.

When it is desired to reverse the direction of motion of the drums and cylinders in the half-unit 4, the collar 43 may be removed from the position shown in the drawing. The gear 37 is then moved on the shaft 32 towards the left, out of engagement with the gear 28, and the gear 38 is moved into engagement with the gear 28 and'the collar 43 placed betweenthe right end of the gear 38 and the adjacent bracket 33.

While I have described one embodiment of my invention, modifications thereof may be readily devised without departing from the spirit of my invention, and it is to be understood that such modifications come within the scope of the appended claims.

I claim 1. A printing press unit comprising two identical frames abutting each other at the top and bottom of the frames for providing a passageway between the frames, an impression cylinder and a plate cylinder car- 'ried by each frame and an ink fountain .tom of said frames and on the outer sides thereof.

3. A printing press unit comprising two sets bf frames spaced apart and of a sufficient height to permit a person to walk therebetween while standing erect, each set of framescarrying an impression cylinder and a plate cylinder, the top of the plate cylinderbeing disposed substantially hip high when the person is standing erect, ink cylinders carried by each set of frames, and being disposed above said first named cylinders, and at such a height as to permit them to be washed by an operator while in standing position, said impression and plate cylinders being disposed substantially above one another for permitting the person to readily see both cylinders at their point of contact while he feeds a web of paper therebetween.

4. A printing press unit comprising two sets of frames spaced apart and of a sufficient height to permit a person to walk therebetween while standing erect, each set of frames carrying an impression cylinder and a plate cylinder, the top of the plate cylinder being disposed substantially hip high when the person is standing erect, ink cylinders carried by each set of frames and being disposed above said first named cylinders, and at such a height as to permit them to be washed by-an operator while in standing position, said impression and plate cylinders being disposed substantially above one another for permitting the person to readily see both cylinders at their point of contact while he feeds a web of paper therebetween, an ink fountain carried by each set of frames and being disposed substantially shoulder person is standing erect.

WALLACE H. GRANGER.

high when the Hill 

